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Finding the Fourth Proportional to 383,768.16, 575,772.12 and 131,054.64

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Solution

The fourth proportional to 383,768.16, 575,772.12 and 131,054.64 is: 196,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,768.16 : 575,772.12 = 131,054.64 : x
  2. Step 2: Convert to fraction form
    383,768.16/575,772.12 = 131,054.64/x
  3. Step 3: Cross multiply
    383,768.16x = 575,772.12 × 131,054.64
  4. Step 4: Simplify right side
    383,768.16x = 75,457,607,908.64
  5. Step 5: Solve for x
    x = 75,457,607,908.64/383,768.16
  6. Step 6: Final answer
    x = 196,622.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.